Throttle Muscle TM2282 - Battery Cleaner with Acid Indicator 10 Oz Turns pink upon contact with battery acid Instantly neutralizes, dissolves and removes battery corrosion Ideal for battery terminals, cables, hold-downs, boxes and anywhere else corrosion is building up Restores maximum current flow and reduces potential voltage leaks Follow with Throttle Muscle Battery Protector Spray to prevent further corrosion build up